I have Wing Sung 590 and I accidentally broken the feed. I glued it and it looked ok, then I filled my pen but get a lot of skipping. So I thought that I blocked channels with glue and I deepen the channel with scalpel, then tried to write. The result was even worse. Then I thought that may be I made a channel too deep so I placed a piece of thread at the end of the feed. And it worked!
Now the question is: how to reduce depth of the feed?
Thanks for any suggestions.
P.S. Sorry for bad English.